Rockwell Automation 1718-AENTR/1719-AENTR

p a href= https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-202-08.json strong View CSAF /strong /a /p h2 Summary /h2 p strong Successful exploitation of this vulnerability could allow for an attacker to cause a denial-of-service condition on the product. /strong /p p The following versions of Rockwell Automation 1718-AENTR/1719-AENTR are affected: /p ul li 1718/ 1719 Ex I/O 3.011 nbsp; /li /ul div class= csaf-table table class= tablesaw tablesaw-stack data-tablesaw-mode= stack data-tablesaw-minimap thead tr th role= columnheader data-tablesaw-priority= persist CVSS /th th role= columnheader Vendor /th th role= columnheader Equipment /th th role= columnheader Vulnerabilities /th /tr /thead tbody tr td v3 7.5 /td td Rockwell Automation /td td Rockwell Automation 1718-AENTR/1719-AENTR /td td Allocation of Resources Without Limits or Throttling /td /tr /tbody /table /div h3 Background /h3 ul li strong Critical Infrastructure Sectors: /strong Critical Manufacturing /li li strong Countries/Areas Deployed: /strong Worldwide /li li strong Company Headquarters Location: /strong United States /li /ul hr h2 Vulnerabilities /h2 div class= csaf-accordion p a class= csaf-accordion-toggle-all href= # Expand All + /a /p div class= csaf-accordion-item h3 a class= csaf-accordion-toggle href= # CVE-2026-9140 /a /h3 div class= csaf-accordion-content p A denial-of-service security issue exists in the 1719-AENTR. The security issue stems from improper handling of a UDP unicast network storm, which causes the device to become overloaded and lose communication. A power cycle is required to recover. /p p a href= https://www.cve.org/CVERecord?id=CVE-2026-9140 View CVE Details /a /p hr h4 Affected Products /h4 h5 Rockwell Automation 1718-AENTR/1719-AENTR /h5 div class= ics-vendor-version-status div class= ics-vendor strong Vendor: /strong br Rockwell Automation /div div class= ics-version strong Product Version: /strong br Rockwell Automation 1718/ 1719 Ex I/O: 3.011 /div div class= ics-status strong Product Status: /strong br known_affected /div /div div class= ics-remediations h6 Remediations /h6 p strong Vendor fix /strong br Rockwell Automation recommends users to upgrade to 1718/ 1719 Ex I/O version 3.012 or later. /p p strong Mitigation /strong br Customers using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices (https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight). br a href= https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight /a /p p strong Mitigation /strong br For more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html. br a href= https://www.rockwellautomation.com/en-